For questions, quotes, or help finding the right battery, feel free to email us at sales@batteryweb.com

New collections added! Learn more

🎉 First Order Special 🎉

First-time shoppers get 5% OFF on batteries & accessories!

WELCOME5
SigmasTek  |  SKU: BW-5915

Dual-Lite ML3CH High Performance Replacement Battery

Sale price $69.38 USD Regular price $83.77
Shipping calculated at checkout.

➤ Meets or exceeds OEM SLA battery specifications for Dual-Lite ML3CH

➤ Uses Absorbent Glass Mat (AGM) technology for reliable performance

➤ Maintenance-free and spill-proof design for hassle-free use

➤ U.L. Recognized and CE Certified for safety and quality assurance

➤ Backed by a 1-year warranty and factory fresh for long-lasting power


📦🚀 FAST SHIPPING: Usually ships same day if ordered before 2 PM EST

⚠️ Quick Reminder

🔹 Please ensure the original battery model number is listed in our product description and that your device model number matches for compatibility.
🔹 We only supply the batteries shown in the images. Device images are provided for reference only.

📸 Send Your Battery Photo / Unsure? Expert Help

Snap a photo or video of your battery and send it to us. We'll identify the exact replacement—fast and hassle-free. Our team has helped thousands of customers find the right battery quickly and easily.
POST YOUR IMAGE

Battery Care Guide

Battery Usage and Maintenance Guidelines 🔋

Please read the following instructions carefully before using your new battery. Proper adherence will help ensure optimal performance and extended service life.

1. Cordless Phones, PDAs, and Power Tools (NiMH, NiCd, Lithium-Ion) 📱

Initial Charge

  • Fully charge the battery overnight prior to first use.

Conditioning (First 2–6 Charge Cycles)

  • Operate the device until the battery reaches approximately 20% capacity.
  • Avoid premature recharging.
  • Do not allow the battery to fully discharge during the initial cycles.

Post-Conditioning

  • Recharge the battery only when necessary.
  • These batteries are capable of approximately 500 charge cycles:
  • Once daily → ~500 days
    Twice daily → ~250 days
    Note: Even a partial recharge is considered a full cycle.

2. Sealed Lead Acid (SLA) Batteries 💡

  • No conditioning required.
  • Maintain the battery in a fully charged state; avoid complete discharge.
  • Capable of 300–400 charge cycles.
  • Expected service life: 2–3 years, depending on usage conditions.

3. Laptop Batteries (Lithium-Ion) 💻

Initial Charge

  • Fully charge the battery overnight prior to first use.

Conditioning (First 2–6 Charge Cycles)

  • Charge fully, then discharge to approximately 20% capacity.
  • Avoid complete discharge, as some devices may not detect a fully drained battery.

Post-Conditioning

  • Minimize frequent plugging and unplugging.
  • Allow the battery to discharge moderately at least once per month to maintain optimal performance.
  • Occasional cycling is recommended to sustain battery health.

Professional Recommendation

Adhering to these guidelines will enhance battery longevity and ensure reliable performance.

For further assistance regarding your battery or order, our customer support team is available to provide guidance.

Delivery and Shipping

Everything You Need to Know About Shipping with BatteryWeb (USA)

We know reliable delivery matters when you need power fast. Here’s how BatteryWeb makes shipping easy across the USA:

🚚 Shipping & Delivery

Most orders ship next business day (some products like sealed lead acid may take a little longer).

Same-day shipping available if you order before 11:59 AM (delivery depends on the carrier).

We ship nationwide using FedEx, UPS, USPS, DHL, and regional ground carriers.

Shipping costs are calculated automatically at checkout based on weight, distance, and carrier.

Transit times shown are estimates only (business days, no weekends/holidays).

🌍 Shipping Restrictions

Lithium batteries cannot be shipped by USPS or air. They must go via FedEx Ground, UPS Ground, or DHL Ground.

PO Box deliveries are only available via USPS.

At this time, we do not ship lithium batteries to Puerto Rico. NiMH, NiCd, and Alkaline can be shipped.

📦 Important Notes

Double-check your shipping address! If an incorrect address is used and the order is returned, re-shipping costs are the buyer’s responsibility.

If a product is temporarily out of stock, we’ll notify you right away with the expected restock date—or issue a refund if you prefer.

💲 Currency & Pricing

All prices are shown in USD.

Orders shipped outside the USA may be subject to local taxes, customs fees, or import duties. These are the buyer’s responsibility.

⚡ At BatteryWeb, we’re committed to getting your batteries delivered quickly, safely, and affordably—so you’ll always have the power you need, when you need it.

Disclaimer

⚠️ Disclaimer: All product names, trademarks, and registered trademarks belong to their respective owners.

🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.

🔹 Our products are generic replacement parts and are not affiliated with, endorsed by, or manufactured by the original equipment manufacturers (OEMs).


Volts & Amps

6 Volts | 20 Ah

Terminal Type

Nut & Bolt

Replacement Dual-Lite ML3CH Battery — Compatible with Dual-Lite ML3CH

Designed specifically as a direct-fit replacement battery for the Dual-Lite ML3CH, this high-quality emergency lighting pack delivers reliable performance and proven compatibility. Whether you need a dependable replacement battery for critical lighting systems or a high-performance battery to keep safety equipment ready, the Dual-Lite ML3CH replacement offers maintenance-free, spill-proof construction and factory-fresh reliability. Built with AGM technology and U.L. recognized components, this long-lasting battery is an ideal choice for professionals and homeowners who demand consistent power when it matters most.

Key Specifications

  • Compatible Model: Dual-Lite ML3CH
  • Chemistry: Absorbent Glass Mat (AGM) Technology
  • Design: Maintenance-Free
  • Construction: Spill Proof
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Voltage: 6 Volts
  • Capacity: 20 Ah
  • Terminal Type: Nut & Bolt
  • Brand: SigmasTek

Benefits

This replacement battery for the Dual-Lite ML3CH is engineered for durability and dependable, long-term service. AGM construction provides vibration resistance, low internal resistance for efficient charging and discharge, and a maintenance-free platform that eliminates the need for regular electrolyte checks. As a high-performance battery, it delivers consistent output to emergency lighting fixtures, ensuring lights remain illuminated during outages and power interruptions.

Expect a long-lasting battery life backed by factory-fresh components and a 1 year warranty for added peace of mind. The spill-proof design and U.L./CE certifications make it suitable for safety-critical installations. Typical applications include emergency lighting and emergency power systems, but its robust build also supports security alarms, fire alarms, medical equipment, consumer electronics, and home & garden devices. For broader use, the Dual-Lite ML3CH replacement battery can also serve as a reliable power source for UPS systems, emergency power backups, and portable tools where a sealed lead-acid SLA is appropriate.

Installation is straightforward with nut & bolt terminals, offering secure connections for both new installs and replacements. If you require assistance or have compatibility questions, our customer service team is available by phone or email to guide you through selection and installation.

Ready to replace your Dual-Lite ML3CH? Buy this long-lasting, high-performance replacement battery today to restore reliable emergency lighting functionality. Orders for in-stock items typically ship within 24 hours — purchase now to get fast delivery and trusted performance.


Payment & Security

Payment methods

  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.